$NetBSD$

Remove useless precompiled headers from lib_storage

--- Telegram/lib_storage/CMakeLists.txt.orig	2020-02-17 20:21:07.812160059 +0000
+++ Telegram/lib_storage/CMakeLists.txt
@@ -10,7 +10,6 @@ init_target(lib_storage)
 
 get_filename_component(src_loc . REALPATH)
 
-target_precompile_headers(lib_storage PRIVATE ${src_loc}/storage/storage_pch.h)
 nice_target_sources(lib_storage ${src_loc}
 PRIVATE
     storage/storage_clear_legacy.cpp